<div class="plant-select-wrapper">
            <span *ngIf="allowSelectCity||allowSelectCounty">地区：
                <nz-select *ngIf="allowSelectCity" style="width: 150px;" [(ngModel)]="city" nzAllowClear
                           nzPlaceHolder="城市" (ngModelChange)="cityChange($event)">
                   <nz-option *ngFor="let i of cityOptions" nzValue="{{i.value}}" nzLabel="{{i.label}}"></nz-option>
                </nz-select>
                 <nz-select *ngIf="allowSelectCounty" style="width: 150px;" [(ngModel)]="county" nzAllowClear
                            nzPlaceHolder="县区" (ngModelChange)="countyChange($event)">
                   <nz-option *ngFor="let i of countyOptions" nzValue="{{i.value}}" nzLabel="{{i.label}}"></nz-option>
                </nz-select>
        </span>
    <span>种植品种：
         <nz-cascader
             [nzOptions]="varietyNoOptions"
             [(ngModel)]="foo"
             (ngModelChange)="varietyNoChanges($event)" nzPlaceHolder="请选择种植品种">
    </nz-cascader>
            </span>
</div>

<div *ngIf="!needChart">暂无数据</div>
<div *ngIf="needChart" echarts [options]="lineChartData" class="chart-line"></div>
